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How far can you build underground?

Author

Olivia House

Published Feb 17, 2026

How far can you build underground?

The depth to bedrock can range from a few feet to hundreds of feet. In many locations, it is well under 100 feet.

Likewise, what is the deepest building underground?

The World's Deepest Buildings

  • 1 – JINPING UNDERGROUND LABORATORY, CHINA – 7,900 FEET DEEP.
  • Above: All of the world's deepest buildings are sciences labs, and at an incredible 7,900 feet deep Jinping Underground Laboratory is the deepest (image courtesy of Tsinghua University).

Additionally, can we build cities underground? It's technically possible to build underground living spaces for people. But are we willing to spend long periods of time in subterranean dwellings? The success of building proposals like Mexico City's Earthscraper might depend on helping people overcome fears associated with the underground.

Similarly one may ask, is it expensive to build underground?

This is because of the cost of digging a hole in the ground to build the house, something that is absent in case of a regular above-the-surface house. It is estimated that underground homes generally cost 20-30% more than the cost of constructing conventional houses.

How deep can you dig under your house?

25 feet

Why don't we build houses underground?

The reason for this it that they are very expensive to build and make very undesirable space. There is little or no natural light, ventilation is strictly mechanical, and egress and fire safety are serious problems. Most underground dwellings are bunkers that no one resides in full time or at all.

Why do we build up instead of down?

Why do we build buidings up instead of digging down? The pressure of the surrounding soil on the building is higher than the pressure of the surrounding air on the building. Helping the air move through a structure exposed to winds is much easier than helping the air move through a complex hole in the ground.

What is the largest underground city in the world?

Montreal, Quebec Underground city

Do you need a permit to build a bunker?

Yes, you will need a permit, especially because it is designed for human occupancy. As already written by another, you will have to submit plans. You may be able to find properly designed plans by seraring on the internet.

What is the deepest bunker in the world?

The Deep Underground Command Center (DUCC), sometimes also called the Deep Underground Command and Control Site (DUCCS), was a United States military installation that was proposed on January 31, 1962, to be "a very deep underground center close to the Pentagon, perhaps 3,000–4,000 feet down, protected to withstand

How deep is the foundation of the tallest building in the world?

At over 828 metres (2,716.5 feet) and more than 160 stories, Burj Khalifa also known as Burj Dubai is all that. Over 45,000 m3 (58,900 cu yd) of concrete, weighing more than 110,000 tonnes were used to construct the concrete and steel foundation, which features 192 piles buried more than 50 m (164 ft) deep.

What is an underground house called?

Underground Earth-Sheltered Homes

When an entire earth-sheltered house is built below grade or completely underground, it's called an underground structure.

What is deep underground?

Definition. Depth greater than 40 meters or. Depth 10 meters greater than the layer on which deep foundation rests.

Can humans survive underground?

Living entirely underground would be unprecedented, to the point of being nearly unfathomable. But experts say with good design and a lot of psychological support, humans could make convincing—and surprisingly healthy—mole people. Good thing, too, because the above world is looking increasingly inhospitable.

How much does it cost to build an underground basement?

The cost to dig a basement for new construction is $12,000 to $36,000. Basement excavation costs $10 to $20 per square foot and takes 2 to 4 weeks to dig-out and build. Digging a basement under an existing house averages $47 per square foot because the house must be raised first.

Are underground homes energy efficient?

Earth sheltered homes are comfortable, affordable and energy efficient. And, if thoughtfully designed, earth sheltered homes admit an abundance of natural light and are far less of an imposition on the landscape than conventional aboveground houses.

How thick should bunker walls be?

1-3 feet

What are the benefits of living underground?

Some advantages of underground houses include resistance to severe weather, quiet living space, an unobtrusive presence in the surrounding landscape, and a nearly constant interior temperature due to the natural insulating properties of the surrounding earth.

Is there a secret underground city?

Derinkuyu, Cappadocia, Turkey

Cappadocia city, located in central Turkey, is home to no less than 36 underground cities, and at a depth of approx. 85 m, Derinkuyu is the deepest.

Is there an underground city in the United States?

As a nation, the US isn't really old enough to have true ruins — cities under cities like in Athens or Rome. Except Seattle. Underneath present-day Pioneer Square, you'll find abandoned streets and office buildings — even a beauty parlor. Today, Underground Seattle lies beneath.

Is it hot or cold underground?

In winter, when it is cold outside, the temperature underground is warmer than the air. The liquid, or solution, circulating through the pipes in the ground absorbs heat from the ground. When the heated solution comes back to the pump, the heat from the solution is transferred to air by the heat pump.

Why are there no underground cities?

The key issues are water, sound, vegetation, and light. It is virtually impossible for any city to exist without buried power and information networks; underground water transmission, sewerage pipes, malls, basements, pedestrian tunnels, and motorways; sometimes a subway system, etc.

How would an underground city work?

The underground cities are primarily build into mountains, so they are above ground level. Vertical shafts provide an escape for heated air from forges, furnaces, and incinerators. This creates a suction effect that draws air in from lower, horizontal tunnels that exit the mountain in the foothills.

Does the White House have a tunnel?

The White House to Treasury Building tunnel is a 761-foot (232 m) subterranean structure in Washington, D.C. that connects a sub-basement of the East Wing of the White House to the areaway which surrounds the United States Treasury Building.

Can you live inside a mountain?

In fact, chances are you'll have plenty of mountain space to call your own for living, relaxing, and maybe even some yodeling if you're into it. And if you're looking to be as remote as possible, there are plenty of opportunities to live in the mountains without any neighbors in eyesight.

Do you need planning permission for underground UK?

If your home already has an underground space that is suitable for conversion from storage (or similar) to a habitable function, planning permission is not normally required as such a change is merely seen as re-purposing.

Is it safe to dig under a house?

You can dig anything anywhere but the house is going to fall down and the slab will give way and is not designed to take the load. Cellar are created before the house is built. Once you dig the length and breadth of the house, you have to have either the in situ concrete reinforced walls and a reinforced slab.
In the US, likely yes. If you own the mineral rights to your land or receive a valid patent in the case where mineral rights are held by the federal government, and your land is not precluded from mining by local or State zoning regulation, then you can dig away.

How deep can you dig without calling 811?

There is no allotted depth before a person needs to call 811. Whether you are just planting small shrubs or installing fences, CGA says any time you are putting a shovel in the ground you need to call due to the fact that many utilities are buried just a few inches below the surface.

How deep can you dig with a shovel?

If you try digging into the earth you can probably work really really hard and dig 2 feet deep with a shovel! A house with a basement starts with a hole about 8 feet deep. The foundation for sky scrapers is sometimes around 50 meters!

How far down are utility lines buried?

18 to 24 inches

Can a house have 2 basements?

Yes, if you're looking for more space to use and no if you don't really have a need for more space. It would be such a waste of money if you decide to build one but you don't really have a concrete plan on where and how you are going to use the double basement.

How far down can I dig in my garden?

Most civil codes require support/forming to keep the hole from collapsing in and killing someone. However, since it's a garden, and this implies a limited size, you can dig as deep as you like for your gardening. I would suggest not going too deep because you want to keep your top soil on top.

Can I build under my garden?

There are few restrictions on building work. Soil type and water come into play, but these can be overcome - unless you live on a bed of granite. One popular option is to build rooms under the garden, not connected to the house.

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